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RE: Wind Exposure

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The State of California B/C does not allow the use of Exposure B under any conditions. You can use C or D however. If you’re not in CA check with your B/D.


From: Ed Tornberg [mailto:ed(--nospam--at)]
Sent: Monday, January 09, 2006 12:33 PM
To: seaint(--nospam--at)
Subject: Wind Exposure


Let’s say I have a house that’s 600 feet or so from the ocean, West coast.  ASCE 7-02 governs.


Between the waterline and the house is a hill, evergreen trees, and other houses.  It’s clearly surface roughness B all around.


Question1 :  What is the design wind exposure?


Question 2:  would it make any difference if using the 1997 UBC?




Ed Tornberg

Tornberg Consulting, LLC